42569887 has 8 divisors (see below), whose sum is σ = 45814032. Its totient is φ = 39408000.

The previous prime is 42569867. The next prime is 42569893. The reversal of 42569887 is 78896524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42569887 - 2¹¹ = 42567839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42569887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42569837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19489 + ... + 21562.

It is an arithmetic number, because the mean of its divisors is an integer number (5726754).

Almost surely, 2^42569887 is an apocalyptic number.

42569887 is a deficient number, since it is larger than the sum of its proper divisors (3244145).

42569887 is a wasteful number, since it uses less digits than its factorization.

42569887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41129.

The product of its digits is 967680, while the sum is 49.

The square root of 42569887 is about 6524.5602916978. The cubic root of 42569887 is about 349.1677832994.

The spelling of 42569887 in words is "forty-two million, five hundred sixty-nine thousand, eight hundred eighty-seven".